Bump psycopg2 version (#9204)

As we use `execute_values` with the `fetch` parameter.

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini

index 5210e7b860..801e6dea2c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -117,7 +117,7 @@ commands =
     # Make all greater-thans equals so we test the oldest version of our direct
     # dependencies, but make the pyopenssl 17.0, which can work against an
     # OpenSSL 1.1 compiled cryptography (as older ones don't compile on Travis).
-    /bin/sh -c 'python -m synapse.python_dependencies | sed -e "s/>=/==/g" -e "s/psycopg2==2.6//" -e "s/pyopenssl==16.0.0/pyopenssl==17.0.0/" | xargs -d"\n" pip install'
+    /bin/sh -c 'python -m synapse.python_dependencies | sed -e "s/>=/==/g" -e "/psycopg2/d" -e "s/pyopenssl==16.0.0/pyopenssl==17.0.0/" | xargs -d"\n" pip install'
 
     # Install Synapse itself. This won't update any libraries.
     pip install -e ".[test]"